Improvement in machines for lasting boots and shoes



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Machines for Lasting Boots and Shoes. NO. 135,540. Pateqted Feb. 4,1873.

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C. W. GLIDDEN.

Machines for Lasting Boots and Shoes.

No-135,540, Patented Feb-4,1873.

M711. asses.

UNITED STATES- PATENT QFFICE.

CHARLES W. GLlDDEN, OF LYNN, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR LASTING BOOTS AND SHOES.

Specification forming part of Letters Patent No. 135,540, dated February4, 1873.

To all whom it may concern:

Be it known that I, CHARLES W. GLIDDEN, of Lynn, in the county of Essexand State of Massachusetts, have invented an Improvement in Machines forLasting Boots and Shoes; and I do hereby declare that the following,taken in connection with the drawing which accompanies and forms part ofthis specification, is a description of my invention sufficientto enablethose skilled in the art to practice it.

The invention relates to a method of lasting by machine, closelyimitative of hand-lasting, in which the workman seizes the edge of theupper with his pinchers and draws it over the inner sole and secures itwith a lasting-tack, or by a stitch, gradually going around the shoeuntil the whole edge is thus lasted.

In my method I combine a feed mechanism that intermittently moves thelast, (upon the sole-face of which the inner sole is laid, and over thesole-face of which the edge of the upper, in which the last is jacked,is to be drawn,) with a griping mechanism that seizes the edge of theupper and draws it over the inner sole after each feed movement, andalso with a nailing or stitch-forming mechanism that secures the upperat each point as it is thus intermittently drawn over the inner sole.

My invention consists, primarily, in the combination of the jack orlast-feedin g mech anism and the intermittently-acting gripin g devices.The invention also consists in the combination, with the feeding andgripin g devices, of a nailing or stitching mechanism, and in-c'ertaindetails of construction and arrangement of mechanism pertaining to thesecombinations.

The drawing represents a machine embodying the invention. A

Figure 1 shows the machine in front elevation. Fig. 2 is a plan of it.Fig. 3 is an end View.

a denotes a base-plate, upon which rests and moves a jack-plate, I),having in its under surface a pattern or guide groove, 0, into whichextend two guide-pins, d d, the groove and pins determining the positionof the last as the plate ismoved, the last being jacked or supportedupon pins 0, extending up from the plate, and a toe-piece, e Thejack-plate b is made or provided with teeth f, with which a pawlmechanism engages to feed the plate, as will be hereafter described.Over the last is the lasting mechanism. This mechanism is connected witha head or plate, 9, extending from a sleeve, h, hung upon a shaft, 1',the weight of the mechanism being nearly counterbalanced by a weight, k,but the mechanism being held by gravity down to or toward the jack. Zdenotes a griper-jaw that extends from a lever, m, pivoted to a slide,72, that slides upon a curved guide, 0, at the front of the plate 9. Theslide at is connected by a link, p, with an arm, q, extending from oneend of a shaft, 1*, which shaft has at its opposite end another arm, s,to which is jointed a slide or link, t, said slide having a pin, it, ex-

tending into a cam-groove, e, of a cam-wheel,

w, on the driving-shaft ac, each rotation of the cam-wheel effecting thereciprocation of the slide t, and of the slide 11-, to which thejawlever is pivoted. The lever m has a pin, y, ex-

site end of the shaft being connected by a slide-link, with thecam-wheel w, a pin, 2?, extending from the slide into the cam-groove.The lever b has a pin, k extending into the circular groove 1 and as thelever is drawn down or thrown up, this groove controls, or partiallycontrols, the position and movement of the lever, and of the jaw at itsinner end. When the griper-jaw 1 moves forward, it is in nearlyhorizontal position, and the jaw a stands in nearly vertical position,and the griper-jaw I, having pressed the upper against the serrated faceof the jaw a, then assumes a vertical position, still holding theleather against the jaw to. Then the two move together with the edge ofthe upper griped between them, from a vertical position at the side ofthe top of the last, to a horizontal position over the last, therebystretching or drawing the edge of the leather over the edge the foot ofthe lever.

of the inner sole in position to be secured or lasted to the inner sole,and in this position it is fastened by a tack or stitch.

The devices attached to the machine, as shown in the drawing, aredesigned to nail or tack the upper, and they operate as follows: mdenotes a nail-tube, stationary as regards the head, and provided withnails or lastingtacks. n denotes a nail-carrier, pivoted to When thelever moves outward the nail-carrier is thrown under the lower end ofthe nail-tube, and receives a nail therefrom, the carrier being madetubular to receive the nail. When the levers move together to carry theedge of the leather over the last the nail-carrier moves with them, andstands over a slot in the jaw a and under a nail-driver tube, 0 and justbefore the gripe upon the upper leather is loosened a driver, 19descends and drives the tack or nail. This driver has a projection, (1under which one end of a lever, r extends, the driver being raised bythe lever, and thrown down by a suitable spring. The lever is pivoted att and to its outer arm is hung ahook, 8 against which a pin, c acts asthe cam-wheel rotates, the pin depressing the hook and lifting thedriver, the driver being caught as it ascends by a catch, to, at theupper end of a lever, 00 As the griper-lever a completes its forwardmovement a pin, 51 strikes the lower end of the catch-lever, moving itin and throwing out the catch, thereby releasing the driver, which'isthen thrown down to drive the nail. The nail having been thus driven thecam-wheel pin raises the driver, which is caught by the catch w pressedin by a spring, z the driver being detained by the catch until, by thenext forward movement of the lever b it is again tripped to drive thenext tack. When the nail material is severed from a blank in themachine, or when a stitch-formin g mechanism is used, the arrangement ofthe mechanism for fastening the inner sole and upper will, of course,differ, but the other mechanism will remain the same.

The mechanism that effects the feed of thc jack-plate is as follows: adenotes a long re ciprocating slide-bar, jointed at one end to a lever,b, that is actuated by a cam, 0 on the driving-shaft, and is guided by apin, d extending through a slot, e, in the bar, the front end of thelever having jointed to it a pawlbar, f, at the inner end of which is apawlpin, .9 that engages with notches h of the jack-plate, the pawl-barbeing pressed toward the plate by a spring, Each inward movement of thepawl-bar causes the pawl-pin to press forward the jack-plate, and thepin is withdrawn from each notch for the rear movement of the pawl-baras follows: The top of the pawl-bar has extendingnfrom ita stud, k,that, as the pawl-bar moves forward, strikes a stud-pin, 1 extendingfrom a slide, m which slide is pressed forward by a spring, a the slidemoving in suitable guide-pieces. ,When the pawl-bar starts back, thestud-pin k strikes the rear face of the stud-pin l ,-which causes thepawl-bar to be thrown back, thereby releasing the pawl-pin g andpermitting it to recede without imparting movement to the jack-plate.

By means of a cutter, 0 attached to the griper-jaw l the upper may beslit at each forward movement of the jaw, thereby forming a tongue,which is seized by the jaws to be drawn over and lasted to the innersole.

By a machine thus organized boots and shoes may be rapidly andefl'ectively lasted,

the mechanism beingentirely automatic in its operation, and the workneeding but slight attention on the part of the operator.

The toe-piece e is pivoted at p, and is held by the stress of aspring, gItis covered with rubber or other suitable elastic compound and when theupper and last are laid upon the toe-piece and pressed down thetoe-piece slides forward, and, in sliding forward, presses forward theupper with it.

I claim--,

.1. In combination with a jack or shoe-supporting mechanism, the gripingmechanism, substantially as shown and described, for-intermittentlyseizing the upper and drawing it over the edge of the inner sole. i

2. The combination, with such a griping and drawing mechanism, of themechanism, sub stantially as shown and described, for fastening the edgeof the upper to the inner sole.

3. In combination with the griping-mechanism, a jack having anintermittent -'feed movement, substantially as described. 1

4. Incombination with the jack, the slide bar a pawl-barf ,'pawl-pin gstud -pin k slide m and stud-pin 1, operating substantially asdescribed.

5. In combination with the griper-jaw the nail-carrier n and nail-driverp and the mech anism, substantially as described, for operating them.

6. In combination with the griping mechanism and nail-driving mechanismthe nailtube masubstantially as described.

7. In combination with the griper-jawl the cutter 0 for slitting theupper. V Executed this 9th day of December A. D.

O. W. GLIDDEN. Witnesses:

FRANCIS GOULD,

M. W. FROTHINGHAM.

